Download Human Diseases

Anatomy and Physiology

Liver
 Largest solid organ in the body
 Plays role in:
○ Digestion
○ Absorption
○ Metabolism
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Anatomy and Physiology

Liver
 Plays role in
○ Blood clotting
○ Manufacture of important chemicals
○ Storage of nutrients
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Anatomy and Physiology
Gallbladder stores bile until needed
 Pancreas produces and excretes most
of the intestinal enzymes

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Common Signs and Symptoms

Liver Disease
 Jaundice
 Pain is the most common symptom
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Diagnostic Tests
Liver function tests measure bilirubin,
albumin, alkaline phosphatase
 Ultrasound, X-rays, CAT scan
 Biopsy
 Blood tests to measure pancreatic
function

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Liver Diseases

Hepatitis
 Inflammation of the liver
 Causes include chemical actions of drugs,
toxic substances, chronic alcoholism, group
of viruses
 Viral hepatitis is the most prevalent
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Liver Diseases

Hepatitis
 Symptoms
○ Jaundice
○ Malaise
○ Anorexia
○ Myalgia
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Liver Diseases

Hepatitis
 Symptoms
○ Fever
○ Abdominal pain
○ Dark-colored urine (hepatomegaly)
○ Clay or light-colored stools
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Liver Diseases

Hepatitis
 Treatment
○ Rest
○ Good nutrition
 Prevention
○ Good hygiene
○ Special care when handling needles and body
fluids
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Liver Diseases

Viral Hepatitis occurs in five types
 A, B, C, D, E
Hepatitis A: benign; spread by oral-fecal
contact
 Hepatitis B: formerly called “serum
hepatitis” spread by blood, urine, feces,
saliva, and semen

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Liver Diseases
Hepatitis C: spread by blood or sex
 Hepatitis D: “delta virus” requires
presence of hepatitis B to replicate
 Hepatitis E: spread through fecal-oral
contact, commonly due to water
contamination

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Liver Diseases

Cirrhosis
 Chronic, irreversible, degenerative
 Replacement of normal liver cells with
nonfunctioning scar tissue called “hobnail
liver”
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Liver Diseases

Cirrhosis
 Most common cause is chronic alcoholism
 Symptoms
○ Loss of appetite
○ Nausea
○ Indigestion
○ Weakness and weight loss
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Liver Disease

Liver Cancer
 Primary and benign tumors of liver are rare
 Usually discovered late or end stage
 Diagnosis confirmed by biopsy
 Treatment may involve surgery, radiation,
chemotherapy
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Gallbladder Diseases

Cholecystitis
 Inflammation of gallbladder usually caused
by obstruction of bile due to gallstone
 Diagnosis is made by ultrasound,
cholecystogram
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Gallbladder Diseases

Cholecystitis
 Symptoms
○ Mild to severe RUQ pain
○ Nausea and vomiting after eating
 Treatment surgical excision
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Gallbladder Diseases

Cholelithiasis
 Gallstones in gallbladder or bile ducts
 Symptoms
○ Nausea
○ Vomiting
○ RUQ pain following meals with fat
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Gallbladder Diseases

Cholelithiasis
 Risk factors include excessive weight,
increasing age, female
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Gallbladder Diseases

Cholelithiasis
 5 F’s of cholelithiasis
○ Female
○ Fair complexion
○ Fat
○ Fertile
○ Forty or older
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Pancreas Diseases

Pancreatitis - Inflammation of pancreas
 Symptoms
○ Severe abdominal pain radiating to back
○ Nausea
○ Vomiting
○ Diaphoresis
○ Tachycardia
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Pancreas Diseases

Pancreatitis
 Symptoms of chronic pancreatitis are similar
to acute
 Diagnosis is based on high blood amylase
 Treatment and prognosis depends on cause
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Pancreas Diseases

Pancreas Cancer
 Usually adenocarcinoma occurring in head
of pancreas
 Symptoms:
○ Abdominal pain
○ Back pain
○ Nausea
○ Vomiting
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Pancreas Diseases

Pancreas Cancer
 Symptoms
○ Loss of appetite
○ Weakness
○ Jaundice
○ Fatigue
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Pancreas Diseases

Pancreas Cancer
 Diagnosis confirmed by biopsy
 Treatment
○ Surgical resection
○ Radiation and chemotherapy
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